Here's the familiar Bing homepage. Let's try a search for "movies"

It returns the search results as you'd expect, but there's a new column on the right displaying related results among our Facebook friends

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Hovering the mouse over a Facebook friend reveals more details about why he might know what you're searching for

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Below your list of Facebook friends is a list of people who might know what you're looking for. Roger Ebert would certainly know a lot about movies

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If you still can't find what you're looking for, the new Bing lets you ask all your Facebook friends at once

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Here's how that post appears in your Timeline

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In conclusion...

The newly social Bing is still in its early stages, and that became apparent to us when the social bar would appear and disappear randomly at times. We expect Microsoft to get that hammered out soon enough.

As far as search results go, we're not interested in our friends' Facebook "Likes." We'd much rather have quick and easy access to unaffected search results a la Google. But we realize that this won't be the case for everyone. With the new Bing, you have easy access to conventional search and social search alike, so it's the best of both worlds.